LT1-LT4 Modifications 1993-97 Gen II Small Block V8

crank case pressure

Thread Tools
 
Search this Thread
 
Old 10-25-2012 | 11:20 AM
  #1  
94whiteZ's Avatar
Thread Starter
Staging Lane
 
Joined: Jun 2012
Posts: 75
Likes: 0
From: sac
Default crank case pressure

How can I get rid of crank case pressure. Turboed Lt keeps spitting oil everywhere I think out of turbo. Were can it be coming from!!??
Old 10-25-2012 | 11:22 AM
  #2  
94whiteZ's Avatar
Thread Starter
Staging Lane
 
Joined: Jun 2012
Posts: 75
Likes: 0
From: sac
Default

And why it's two weeks old fresh out the box
Old 10-25-2012 | 11:28 AM
  #3  
RamAir95TA's Avatar
TECH Senior Member
iTrader: (2)
 
Joined: May 2005
Posts: 9,467
Likes: 7
From: South Jersey
Default

You should probably post some more details here. All we know is you have a turbo'd LT1...I think.
Old 10-25-2012 | 05:31 PM
  #4  
94whiteZ's Avatar
Thread Starter
Staging Lane
 
Joined: Jun 2012
Posts: 75
Likes: 0
From: sac
Default

Full bolt ons cc 306 cam ported stock heads 202 valves. Is it boosting to much or was the turbo not properly broke in. Maybe turbo seal??
Old 10-25-2012 | 09:49 PM
  #5  
BADHAWK51's Avatar
10 Second Club
iTrader: (1)
 
Joined: Jan 2003
Posts: 1,516
Likes: 0
From: Chicagoland Area
Default

Could be coming from the valve covers ? dip stick tube ? you could run a vacuum pump to take care of the crankcase pressure.
Old 10-26-2012 | 12:44 AM
  #6  
94whiteZ's Avatar
Thread Starter
Staging Lane
 
Joined: Jun 2012
Posts: 75
Likes: 0
From: sac
Default

Was coming from valve covers fixed that. Does come out of dipstick under boost.. How do I run a vacuum pump and were do I find one.
Old 10-26-2012 | 04:47 AM
  #7  
Bigtoyz's Avatar
Launching!
iTrader: (2)
 
Joined: Apr 2012
Posts: 219
Likes: 1
Default

do you have breather on each valve cover....probably not getting rid of enough of the pressure if it is pushing dip stick out. I am having issue also and gonna add another breather, but before I figured it out I blew my front and rear seals out......... come to find out. Its not bad to where I loose alot of oil but dont like the fact less than 5k on new motor and a oil leak.

is it a new motor or a new build? did it ever ping or anything. When I was stock and if it pinged I had broked piston lands and it would push the dipstick out.
Old 10-26-2012 | 11:38 AM
  #8  
94whiteZ's Avatar
Thread Starter
Staging Lane
 
Joined: Jun 2012
Posts: 75
Likes: 0
From: sac
Default

Never a ping or oil leak until he started boosting now there's a oil leak. 150xxx on bottom end 500 miles on all fresh gaskets 80 miles on turbo looks to be coming out of turbo as well as the dip stick
Old 10-26-2012 | 06:21 PM
  #9  
TwoFast4Lv's Avatar
10 Second Club
iTrader: (8)
 
Joined: Nov 2001
Posts: 10,023
Likes: 6
From: LT1 land...the "409" of the 90s!
Default

I use a vacuum pump
Old 10-26-2012 | 06:27 PM
  #10  
BADHAWK51's Avatar
10 Second Club
iTrader: (1)
 
Joined: Jan 2003
Posts: 1,516
Likes: 0
From: Chicagoland Area
Default

GZ Motorsports sells a vacuum pump for our cars. I would post a link but I'm not sure if they are a sponsor.
Old 11-18-2012 | 07:51 AM
  #11  
97Z28SS's Avatar
TECH Fanatic
iTrader: (5)
 
Joined: May 2009
Posts: 1,290
Likes: 3
Default

Badhawk does the GZ Motorsports pump for our cars fit where the alt should go? I need one as well but I have the SpeedInc accessory drive kit and my alt is relocated to drivers side lower and has an idler where the alt used to be. If the GZ would bolt in place where the alt used to be it would be perfect. Also doe the GZ pump work with the factory serpentine belt?
Old 11-18-2012 | 02:08 PM
  #12  
BADHAWK51's Avatar
10 Second Club
iTrader: (1)
 
Joined: Jan 2003
Posts: 1,516
Likes: 0
From: Chicagoland Area
Default

Originally Posted by 97Z28SS
Badhawk does the GZ Motorsports pump for our cars fit where the alt should go? I need one as well but I have the SpeedInc accessory drive kit and my alt is relocated to drivers side lower and has an idler where the alt used to be. If the GZ would bolt in place where the alt used to be it would be perfect. Also doe the GZ pump work with the factory serpentine belt?
IF you go to their website they show you a few options for mounting under sbc and run a separate belt for the pump.




All times are GMT -5. The time now is 03:57 PM.